steam re-install help wanted Race07

Hi all. I noticed recently that i couldnt join wtcc 06 and wtcc07 lobbies online as there were unknown cars in both. I narrowed it down to the e46 in wtcc07 and the alfa gta and toledo in wtcc06. I copied my gamedata, ui and user folders to desktop. Deleted the teams wtcc07 folder and custom skins and then deleted and reinstalled race07. I then copied my old gamedata ui and user back to the race 07 folder. This worked for wtcc07 which is now playable again online. I forgot to delete the toledo and gta 06 folders however and still cant play wtcc 06 online.

SO... My question is, can i just delete the 2 wtcc06 folders (toledo 1 and alfa gta 1)in teams and the app.ini folder and then restart? Saving me the hastle of copying all my mods to desktop and doing a full uninstall again. Would steam just install the 2 missing folders after the restart?

Sorry if this is too confusing and long winded. Any help would be appreciated. Thanks, AndyR

Back home at my pc now. The app.ini i mentioned above is actually appcache folder. I tried the idea mentioned but no joy. I have solved the issue however.

For anyone experiencing an issue involving unknown cars in a class online. You may have 2 folders/files that share the same name. I deleted a folder from teams and i think talent as well which contained files named exactly the same as the ones in the wtcc folder and all is well again.